Your app lives on a network - networking for PHP devs

As PHP developers, our job is to build web applications. But how can we build applications that rely on networking if we don't know how these networks and the big network that connects them all (this thing called the Internet) actually work ?
We'll walk through the basics of networking, before diving into all the essentials every PHP developer should know, from TCP/UDP over IP addressing (IPv4/6), source/destination ports, sockets, DNS, switching, firewalling and even more advanced protocols such as OSPF, VRRP and BGP.

Prepare for an eye-opener when you realize how much a typical app relies on all of these (and many more) working flawlessly... and how you can prepare your app for failure in the chain.